A highly selective colorimetric and "Off-On'' fluorescent chemosensor for fluoride ions and its application as a molecular-scale logic device

A new sensor 2,20-((1E,1'E)-((3,3'-dimethyl-[1,1'-biphenyl]-4,4'-diyl)bis(azanylylidene))bis(methanylylidene))diphenol (YT) based on the combination of phenolic hydroxy and imine groups was used as an efficient colorimetric and "turn on'' fluorescent sensor for flu...

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Bibliographic Details
Published inNew journal of chemistry Vol. 39; no. 11; pp. 8797 - 8801
Main Authors Yan, GuoTao, Li, Hui, Zhu, Yuan Rong, Shi, BingBing, Qu, Wenjuan, Lin, Qi, Yao, Hong, Zhang, YouMing, Wei, TaiBao
Format Journal Article
LanguageEnglish
Published CAMBRIDGE Royal Soc Chemistry 01.01.2015
Subjects
Chemistry
Chemistry, Multidisciplinary
Physical Sciences
Science & Technology
CU2
SENSOR
RECEPTORS
CYANIDE
PROBES
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Summary:A new sensor 2,20-((1E,1'E)-((3,3'-dimethyl-[1,1'-biphenyl]-4,4'-diyl)bis(azanylylidene))bis(methanylylidene))diphenol (YT) based on the combination of phenolic hydroxy and imine groups was used as an efficient colorimetric and "turn on'' fluorescent sensor for fluoride anions. The receptor exhibits high selectivity and sensitivity for sensing F-. Furthermore, the enhanced fluorescence caused by fluoride could be reset upon the addition of calcium ions to the complex solution. The fluorescence changes of YT upon the addition of F- and Ca2+ were utilized as an INHIBIT logic gate at the molecular level, using F- and Ca2+ as chemical inputs and the fluorescence intensity signal as the output.
ISSN:1144-0546
1369-9261
DOI:10.1039/c5nj00918a